KR100981061B1 - Method for backfill gap of structure - Google Patents

Abstract

PURPOSE: A method for filling a stepped part of a building is provided to reduce construction costs and construction period by installing a filler part by recycling a filling member in which concrete and soil are mixed. CONSTITUTION: A method for filling a stepped part of a building is as follows. A ground(E) of a space in which foundation is arranged is dug. A first mold is established in the boundary of the installation space of the installation space section of a first building foundation and a filler part(300). The installation space of the filler part is filled with the filler member. A steel reinforcing bar(R) is arranged in the installation space of the first building foundation. The concrete is poured in the installation space of the first building foundation. The concrete is poured in the installation space of the second building foundation.

Description

Backfill construction method of building {METHOD FOR BACKFILL GAP OF STRUCTURE}

The present invention relates to a step refilling method for a building, and more particularly, to a step refilling method for a building, which can shorten a construction period and reduce a construction cost.

In general, villas, townhouses, and multi-family houses are constructed so that two generations face each other with a staircase between them, and apartments are constructed so that each two generations have independent structures facing each other or symmetrically. The private life and personal affairs of the house are not to be disturbed by others.

Among these complex buildings, high-rise apartments are being constructed in recent years, but if the same volume ratio, high-rise apartments are advantageous in terms of aesthetics and space in the complex, and consumers prefer high-rise apartments. Supply is expected to increase further.

In recent years, eco-friendly apartment complexes have been constructed that make parking lots that were installed on the ground and underground only in the basement, and make landscaping and walking space for the residents between the apartments used for the existing ground parking lot.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

In the case of apartments, the bearing capacity of the foundation supporting them must be largely secured. On the other hand, in the case of the foundations for supporting the underground parking lot and the facilities disposed between the apartments, not only the load itself is large, but also the number of floors of the underground parking lot is usually about 2 to 3 floors, so the endurance for this is considerably smaller than that of the apartment.

Therefore, a difference in thickness is generated between the apartment foundation and the parking lot foundation based on the required bearing capacity, thereby forming a step between the apartment foundation and the parking lot foundation. In the conventional case, it has secured more than a certain amount of bearing capacity by placing concrete in such a step, but with the expense of relatively expensive concrete placing, the construction period increases as the curing of concrete is slow in winter, so the whole apartment There is a problem that the construction cost is increased.

Therefore, there is a need for improvement.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a step refilling method for a building which can shorten the construction period and reduce the construction cost.

The step refilling method of the building according to the present invention includes: an installation space of a first building foundation for supporting a first building, and an installation space of a second building foundation for supporting a second building disposed on one side of the first building An excavating step of excavating an installation space part of the backfill part disposed on one side of the first building foundation part; A first formwork installation step of installing a first formwork at a boundary between an installation space portion of the first building foundation portion and an installation space portion of the backfill portion; And a backfill step of pouring backfill material into the installation space portion of the backfill portion.

Preferably, the second formwork installation step of installing a second formwork at the boundary of the installation space portion of the first building base portion and the installation space portion of the second building foundation; Reinforcement step for reinforcing the reinforcing bars in the installation space portion of the first building foundation; A first concrete placing step of placing concrete in the installation space portion of the first building foundation; And a second concrete placing step of placing concrete in the installation space portion of the second building foundation part.

Preferably, in the excavating step, the ground is excavated so that the installation space portion of the backfill portion forms an inclined surface.

Preferably, the step of installing the first form, the step of disposing a first brace for supporting the first form to the installation space side of the first building foundation.

Preferably, the step of installing the first form, the step of surrounding the outer surface of the first form with a tent.

More preferably, the tent is made of a waterproof material.

Preferably, the backfill material comprises concrete and soil.

More preferably, the backfill material is a mixture of concrete and soil in a ratio of 1: 4-5.

Preferably, in the backfilling step, the backfill material is divided into a plurality of times and backfilled, and after each backfill is performed, stratification is performed.

More preferably, the step of reinforcement includes the step of reinforcing the connecting reinforcing bar connecting the installation space portion of the first building foundation and the installation space portion of the second building foundation.

According to the step refilling method of the building according to the present invention, since the backfill portion is installed by using a backfill material in which concrete and soil are mixed, construction cost can be reduced.

In addition, according to the step refilling method of the building according to the present invention, since the stratification is carried out immediately after the backfill is performed every time during the backfilling step, it is possible to secure the required endurance force and shorten the construction period.

In addition, according to the step backfilling method of the building according to the present invention, since the first brace for supporting the first formwork is disposed in the installation space of the first building foundation part, the first formwork and the first brace dismantled after the backfilling step is completed. Can be facilitated.

In addition, according to the construction of the step refilling method of the building according to the invention, the workability at the time of installation and dismantling formwork and braces is very beneficial for the prevention of safety accidents.

In addition, according to the step refilling method of the building according to the present invention, since the tent is installed on the outside of the first formwork, not only the disassembly of the mold is easy but also the inflow of rainwater and groundwater can be blocked, thereby improving the quality reliability. .

1 is a layout view of a complex building complex according to an embodiment of the present invention.
2 is a perspective view of a composite building according to an embodiment of the present invention.
3 is a view schematically showing the stepped portion of the composite building constructed by the step refilling method of the building according to an embodiment of the present invention.
4 is a view showing a state in which the excavation step was carried out by the step back filling method of the building according to an embodiment of the present invention.
5 is a view showing a state up to the backfill step by the step backfill method of the building according to an embodiment of the present invention.
FIG. 6 is a view illustrating a state in which a step is performed until a first concrete pouring step by a step refilling method of a building according to an embodiment of the present invention.
FIG. 7 is a view illustrating a state in which the second concrete is placed up to the second concrete pouring step by a step refilling method of a building according to an embodiment of the present invention.
8 is a view showing the construction sequence of the step refilling method of the building according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the step refilling method of the building. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a layout view of a complex building complex according to an embodiment of the present invention, Figure 2 is a perspective view of a complex building according to an embodiment of the present invention. 3 is a view schematically showing the stepped portion of the composite building constructed by the step refilling method of the building according to an embodiment of the present invention, Figure 4 is a step refilling method of the building according to an embodiment of the present invention Figure 5 is a view showing a state in which the excavation step is performed, Figure 5 is a view showing a state up to the backfill step by the step backfill method of the building according to an embodiment of the present invention. 6 is a view showing a state up to the first concrete pouring step by the step refilling method of the building according to an embodiment of the present invention, Figure 7 is a step refilling method of the building according to an embodiment of the present invention 8 is a view showing a state performed up to the second concrete pouring step, Figure 8 is a view showing the construction sequence of the step refilling method of the building according to an embodiment of the present invention.

1 to 3, the complex complex includes a plurality of first buildings 110, convenience facilities (not shown) and a second building 210 disposed between the first buildings 110. . Hereinafter, in the present embodiment, the first building 110 will be described by taking an apartment as an example, and the second building 210 will be described by taking a parking lot as an example. The first building 110 forms a residential space, and the convenience facilities include outdoor sports facilities, walkways, and playgrounds as spaces for leisure and convenience of residents. The second building 210 is installed below the convenience facilities. That is, a convenience facility is disposed on the ground between the first buildings 110, and a second building 210 is disposed underground.

Since the first building 110 has a very high load thereof, the foundation is manufactured by using concrete in the existing ground E to support the first building 110. Similarly, the base part is made of concrete to support the second building 210 disposed between the first building 110.

At this time, since the self-load of the second building 210 is relatively smaller than that of the first building 110, the base portion supporting the second building 210 is compared with the base portion supporting the first building 110. The thickness becomes relatively small.

For this reason, before excavating the ground E prior to fabricating the foundations of the first building 110 and the second building 210, the first building 110 side is deeper than the second building 210 side. To dig

That is, when there is a difference in the load of the object to be supported, there is no choice but to form a stepped portion in the terrain in which the base portion supporting the supporting object is to be installed.

Hereinafter, a step refilling method of a building according to one embodiment of the present invention will be described with reference to FIGS. 3 to 8.

Referring to FIG. 4, prior to construction of the first building 110 and the second building 210, a foundation for supporting the first building 110 and the second building 210 is manufactured. In order to manufacture such a foundation, first, the ground E of the space in which the foundation is to be disposed is excavated using various equipment such as an excavator (S10).

That is, one side of the first building foundation 100 supporting the first building 110, the second building foundation 200 supporting the second building 210, and the first building foundation 100 The ground E of the space in which the backfill portion 300 located at is disposed is excavated.

Since the first building foundation 100 supports the first building 110 that is heavier than the second building 210, the thickness of the first building foundation 100 should be thicker than the second building foundation 200. Bar, the installation space portion 100a of the first building foundation part 100 excavates deeper than the installation space portion 200a of the second building foundation part 200.

That is, the excavation depth difference between the installation space part 100a of the first building foundation part 100 and the installation space part 200a of the second building foundation part 200 is determined by the first building foundation part 100. It is proportional to the load of the first building 110 and the load of the second building 210 to be supported by the second building foundation 200.

The installation space part 100a of the first building foundation part 100 while excavating the installation space part 100a of the first building foundation part 100 and the installation space part 200a of the second building foundation part 200. Dig further around the circumference. The excavated space becomes the installation space portion 300a of the backfill portion 300.

The bottom surface of the installation space portion 300a of the backfill portion 300 extends in the horizontal direction from the bottom surface of the installation space portion 100a of the first building foundation portion 100 and is then excavated to form an inclined surface upward. .

At this time, the angle formed by the inclined surface of the installation space portion 300a of the backfill portion 300 may form an angle such that the ground E does not collapse. Typically this angle is determined around 45 degrees, referred to as the angle of repose.

The inclined surface of the installation space 300a of the backfill 300 is terminated at a portion in contact with the bottom surface of the installation space 200a of the second building foundation 200.

Referring to Figure 5, when the excavation step (S10) is finished, the first formwork at the boundary between the installation space portion 100a of the first building foundation part 100 and the installation space portion 300a of the backfill portion 300 The first mold installation step (S20) for installing the 10 is carried out.

At this time, when the first form installation step (S20) is completed, the backfill step (S30) is carried out, so that the outer surface of the first formwork 10 is backfilled with the installation space portion (100a) of the first building foundation (100) It is installed to be arranged on the boundary surface of the installation space portion 300a of the portion 300.

On the other hand, before installing the first formwork 10, discarded concrete (not shown) on the bottom surface of the installation space portion 100a of the first building foundation part 100 and the installation space portion 300a of the backfill portion 300 Pour). Abandoned concrete is used for the purpose of the installation and the installation of the first formwork (10), etc. Since it is obvious to those skilled in the art will be omitted a detailed description thereof.

When the first formwork 10 is installed, the first formwork 11 is used to support the first formwork 10. One end of the first brace 11 is coupled to the inner surface of the first formwork 10, and the other end is disposed on the discarded concrete placed in the installation space portion (100a) of the first building foundation 100 1 support the die (10).

Thus, since the first brace 11 supports the first mold 10 while being disposed on the installation space portion 100a side of the first building foundation portion 100, the installation space portion 300a of the backfill portion 300 is provided. After the backfill is poured into the backfill 300 is installed, the first formwork 10 and the first brace 11 can be easily dismantled.

After supporting the first formwork 10 by the first brace 11, the outer surface of the first formwork 10 is surrounded by the tent 12. Since the tent 12 is made of a waterproof material, it is possible to block the inflow of rainwater or groundwater during the subsequent lower work, it is possible to prevent the contamination by inflow of soil after reinforcement of the foundation reinforcement.

In addition, since the tent paper 12 is attached to the outer surface of the first formwork 10 in close contact, the disassembly of the first formwork 10 may be facilitated, and the quality control of the exposed surface of the backfill portion 300 may be performed. Is easy.

When the first mold installation step (S20) is completed, the backfill step (S30) is carried out to the installation space portion 300a of the backfill portion 300. Backfill material is made of concrete and soil, and concrete and soil are mixed in a ratio of 1: 4-5.

Conventionally, concrete was used as a material for filling the stepped portion, but according to the present invention, the soil of 1 to 4 is mixed with 4 to 5 soil. Accordingly, it is possible to reduce the amount of concrete required to backfill, thereby reducing the overall cost. In addition, the soil, which is 4 to 5 times larger than concrete, can utilize the soil (including soil, sand, masato, gravel, and rock) obtained when digging in the site, so the cost of backfilling the step is reduced. Much more savings.

In addition, even if concrete and soil are mixed, the backfill material is divided into a plurality of circuits, so that the backfill material is sufficiently laid by using equipment such as a vibrating roller every time, so that the bearing force required by the backfill unit 300 is sufficiently satisfied. Can be installed to receive.

In other words, by using concrete and soil as a backfill material, not only can a cost reduction be achieved, but also a sufficient bearing strength can be obtained by performing stratification between placing the backfill material divided into a plurality of circuits. In addition, it is possible to shorten the air compared to the existing method because it can be continuously stratified after construction of the backfill material.

On the other hand, since the first formwork 10 is supported by the first brace 11, even if the backfilling material is placed and laminated with a vibrating roller or the like, the first formwork 10 is not pushed or deformed and is maintained as it is. Done.

When placing and stratification of the backfill material is finally completed, the first mold 10 and the first brace 11 are dismantled, and the concrete is discarded on the upper portion of the backfill portion 300 before dismantling the first mold 10. Place the tent 12 to fix it. At this time, the discarded concrete is poured into the bottom surface of the installation space 200a of the second building foundation 200.

Referring to FIG. 6, when the backfilling step S30 is finished, the backfilling step S30 may be completed at a boundary between the installation space part 100a of the first building foundation part 100 and the installation space part 200a of the second building foundation part 200. The second formwork installation step (S40) for installing the second formwork 20 is performed.

When installing the second formwork 20, it can support the second formwork 20 by utilizing the second brace 21. One end of the second brace 21 is coupled to an outer surface of the second formwork 20, and the other end supports the second formwork 20 while being disposed on the discarded concrete placed on the upper portion of the backfill portion 300. .

In this way, since the second brace 21 is disposed on the backfill portion 300 to support the second formwork 20, concrete is poured into the installation space portion 100a of the first building foundation 100. After the first building foundation 100 is installed, the second formwork 20 and the second brace 21 can be easily dismantled.

When the second formwork installation step (S40) is completed, the reinforcement step (S50) to reinforce the reinforcing bar (R) to the installation space portion (100a) of the first building foundation 100 is performed. On the other hand, the second mold installation step (S40) and the reinforcement step (S50) may be worked at the same time.

Reinforcement step (S50) is the step of reinforcing the reinforcing bar (R) in the form of a checkerboard to the installation space portion (100a) of the first building foundation portion 100, the installation space portion (100a) of the first building foundation portion 100 And arranging connecting reinforcing bars (C) connecting the installation space (200a) of the second building foundation (200).

The connecting reinforcing bars (C) penetrate the second formwork 20 so that one end thereof is located in the installation space portion 100a of the first building foundation portion 100, and the other end thereof is an installation space portion of the second building foundation portion 200. It is installed to be located at 200a. Therefore, when the concrete is poured, the first building foundation part 100 and the second building foundation part 200 are integrated with concrete by connecting reinforcing bars (C).

When the reinforcement step (S50) is completed, the first concrete placing step (S60) for placing concrete in the installation space portion (100a) of the first building foundation part 100 is carried out, when the curing of the poured concrete is completed second The formwork 20 and the second brace 21 are dismantled.

Thereafter, a second concrete placing step S70 of placing concrete in the installation space 200a of the second building foundation 200 is performed (see FIG. 7). Of course, the step of reinforcing the reinforcing bar to the installation space portion 200a of the second building foundation 200 prior to the second concrete placing step (S70) of course.

As such, after the backfill 300, the first building foundation 100, and the second building foundation 200 are installed, a subsequent process of the first building 110 may be performed, and the second building foundation may be performed. After the installation of the 200, only the first building foundation 100 may be installed, and then a subsequent process of the first building 110 may be performed.

 Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.

In addition, the step between the apartment and the parking lot has been described as an example, but this is merely exemplary, and the step refilling method of the present invention may also be used for the stepped part formed as the elevator is installed and the stepped part outside the basement.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: 1st die 11: 1st prop
12: tent 20: second die
100: foundation part of the first building 100a: installation space part of the first building foundation
110: first building 200: the second building foundation
200a: installation space portion of the second building foundation 210: parking lot
300: backfill portion 300a: installation space portion of the backfill portion

Claims (10)

1) excavating the installation space of the first building foundation supporting the first building, excavating the installation space of the second building foundation supporting the second building disposed on the side of the first building, and the first building foundation An excavation step of digging the installation space portion of the backfill portion disposed on the side of the portion and disposed below the second building foundation;
2) When the excavation step is completed, the first formwork is installed on the boundary between the installation space of the first building foundation part and the installation space of the backfill part, and the first prop supporting the inner side of the first form A first formwork installation step disposed at a side of an installation space of the first building foundation part and surrounding the outer surface of the first formwork with a tent of waterproof material;
3) When the first formwork installation step is completed, the backfill material is divided into a plurality of times the backfill material in which concrete and earth and sand are mixed in the installation space portion of the backfill portion, and the backfill is performed each time the backfill is completed. A backfilling step of stratification for the ashes;
4) When the backfilling step is completed, a second formwork is installed on the boundary between the installation space of the first building foundation and the installation space of the second building foundation, and supports the outer surface of the second formwork. A second formwork installing step of placing the side toward the installation space of the second building foundation;
5) When the second formwork installation step is completed, reinforcing bars in the form of a checkerboard to the installation space portion of the first building foundation part, connecting the installation space portion of the first building foundation portion and the installation space portion of the second building foundation portion Reinforcement step to reinforce the connecting bar; And
6) When the reinforcement step is completed, the first concrete and the second concrete placing step of placing concrete in the installation space portion of the first building foundation portion and the installation space of the second building foundation portion of the building comprising the Step refilling technique.
The method of claim 1,
Wherein the excavation step, the step refilling method of the building, characterized in that the excavation of the ground so that the installation space portion of the backfill portion to form a slope.
The method of claim 1,
The backfill material is a step refilling method of the step of the building, characterized in that the concrete is mixed in the ratio of 1: 4 to 5.
The method of claim 1,
The first concrete and the second concrete placing step, the step refilling method of the building, characterized in that the concrete is separated and placed in the installation space portion of the first building foundation and the installation space of the second building foundation. delete delete delete delete delete delete

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